Saldarreaga A, Garcia Martos P, Ruiz Aragón J, García Agudo L, Montes de Oca M, Puerto J L, Marín P
Servicio de Microbiologia, Hospital Universitario Puerta del Mar, Cadiz, Spain.
Rev Esp Quimioter. 2004 Mar;17(1):44-7.
Filamentous fungi have become a common cause of severe infections, especially in immunocompromised patients. In recent years, the number and diversity of the infections caused by Acremonium species have increased and numerous species have been implicated. As is the case for most emerging pathogens, the optimal therapeutic approach to Acremonium species remains to be determined. We used two methods to determine the in vitro susceptibility to amphotericin B, itraconazole and fluconazole for 15 clinical isolates of eight different species of Acremonium. The MICs were determined according to protocol M38-A of the National Committee for Clinical Laboratory Standards (NCCLS) document, using the Sensititre and E-test microdilution methods. Amphotericin B was effective in vitro for few species using the Sensititre method. However, high MICs were obtained with E-test. Fluconazole and itraconazole were ineffective according to both methods. Acremonium species are generally resistant to the most commonly used antifungal agents. Consequently, Acremonium susceptibility testing is recommended to assist in choosing adequate treatment of infections caused by this filamentous fungus.
丝状真菌已成为严重感染的常见病因,尤其是在免疫功能低下的患者中。近年来,枝顶孢属菌种引起的感染数量和种类有所增加,许多菌种都与之相关。与大多数新出现的病原体一样,针对枝顶孢属菌种的最佳治疗方法仍有待确定。我们使用两种方法来测定8种不同枝顶孢属菌种的15株临床分离株对两性霉素B、伊曲康唑和氟康唑的体外敏感性。根据美国国家临床实验室标准委员会(NCCLS)文件的M38 - A方案,使用Sensititre和E-test微量稀释法测定最低抑菌浓度(MIC)。使用Sensititre方法时,两性霉素B在体外仅对少数菌种有效。然而,用E-test法获得的MIC值较高。根据两种方法,氟康唑和伊曲康唑均无效。枝顶孢属菌种通常对最常用的抗真菌药物耐药。因此,建议进行枝顶孢属菌种的药敏试验,以帮助选择针对这种丝状真菌引起的感染的适当治疗方法。